michaelbeacom

Displays the social widgets from Facebook, Twitter, Google+ and Pinterest with your posts. It also adds some meta tags for opengraph and schema.org as recommended by Facebook and Google. The standard method to do this is by filtering the content of the posts, which is controlled by the options in the admin menu. Buttons can also be displayed by the shortcode [sic] with ability to disable individual buttons for that instance of the shortcode. You can also add it to your theme with do_action(‘sic_sharing’); where you want it to render.
Allows some custom text and css insertion as well as most options for the buttons in the admin page. Compatible with html5 (optional).

Sharing is Caring

Displays the social widgets from Facebook, Twitter, Google+ and Pinterest with your posts. Also adds some meta tags for opengraph and schema.org.

williampatton

This Plugin adds the required Author Meta Tags to the header of all the pages on your WordPress site.
<ul>
<li>You must have a Google+ Profile</li>
<li>You must add the domain you want to show your Author info beside to your “Contributer To” section of your Google+ Profile.</li>
</ul>

Single Author G+ META

This Plugin adds the required Author Meta Tags to the header of all the pages on your WordPress site. It is specifically designed to be as simple as p …

Sharing is Caring vs Single Author G+ META